Mega Code Archive
Extends Animation to create your own animation
<![CDATA[
/*
* Copyright (C) 2007 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import android.util.Log;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.LinearInterpolator;
import android.view.animation.Transformation;
import android.graphics.Camera;
import android.graphics.Matrix;
public class ViewAnimation extends Animation {
float centerX, centerY;
public ViewAnimation(float cx, float cy)
{
centerX = cx;
centerY = cy;
}
@Override
public void initialize(int width, int height, int parentWidth, int parentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
Log.d("d","width:" + width);
Log.d("d","height:" + height);
Log.d("d","pwidth:" + parentWidth);
Log.d("d","pheight:" + parentHeight);
setDuration(2500);
setFillAfter(true);
setInterpolator(new LinearInterpolator());
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
applyTransformationNew(interpolatedTime,t);
}
protected void applyTransformationNew(float interpolatedTime, Transformation t)
{
//Log.d("d","transform:" + interpolatedTime);
final Matrix matrix = t.getMatrix();
matrix.setScale(interpolatedTime, interpolatedTime);
matrix.preTranslate(-centerX, -centerY);
matrix.postTranslate(centerX, centerY);
}
}
]]>